Ryan warns Mark to stay away from Faye

Maisie accidentally opens Mark's post and Natasha is shocked to find out about the flat Mark has bought. Mark asserts that it is just an investment, but Natasha's puzzled. Cain's intrigued when Maisie tells him about the secret flat Mark has bought. Cain makes a passing comment to Mark and rattles him with his knowledge of the flat.

Later, Natasha calls Mark's bluff by asking to see the flat. He masks his deep unease but agrees to take her. How will Mark keep his dark secret from his wife?

Meanwhile, Ryan pays Mark a visit and demands that he stop messing his mother around. Mark is shocked to discover that Ryan knows that he's married - and even more that he knows his wife's name. Ryan doesn't listen when Mark protests that Faye is the one who won't leave him alone.

Ryan tells him to end his relationship with her face to face and warns him to make sure that she gets the message. Mark promises that he will, before they're interrupted by Natasha. Ryan goes home and tells his mum what he's done. Faye, meanwhile, is relieved that Mark didn't tell Ryan the truth and asks her son not to visit him again. Can Ryan stay away from Mark?

Elsewhere, Katie's unimpressed when Nathan assumes they can get back together. Instead, she tells him to get lost. When she finds that her horse has escaped because someone had opened the stable doors, Katie warns Nathan that she's no fool.

Nathan, however, plays innocent, but Katie tells Chas that she knows it was him. Nathan brashly offers to help Katie make amends for her mistake and is pleased when it becomes clear that he's gotten under her skin. Can Katie stay away from Nathan?